nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/internal/ManagerImpl.java

   1 /*
   2   Copyright (C) 2015-2022 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager.internal;
  18
  19 import org.asamk.signal.manager.Manager;
  20 import org.asamk.signal.manager.api.AlreadyReceivingException;
  21 import org.asamk.signal.manager.api.AttachmentInvalidException;
  22 import org.asamk.signal.manager.api.CaptchaRequiredException;
  23 import org.asamk.signal.manager.api.Configuration;
  24 import org.asamk.signal.manager.api.Device;
  25 import org.asamk.signal.manager.api.DeviceLinkUrl;
  26 import org.asamk.signal.manager.api.Group;
  27 import org.asamk.signal.manager.api.GroupId;
  28 import org.asamk.signal.manager.api.GroupInviteLinkUrl;
  29 import org.asamk.signal.manager.api.GroupNotFoundException;
  30 import org.asamk.signal.manager.api.GroupSendingNotAllowedException;
  31 import org.asamk.signal.manager.api.Identity;
  32 import org.asamk.signal.manager.api.IdentityVerificationCode;
  33 import org.asamk.signal.manager.api.InactiveGroupLinkException;
  34 import org.asamk.signal.manager.api.IncorrectPinException;
  35 import org.asamk.signal.manager.api.InvalidDeviceLinkException;
  36 import org.asamk.signal.manager.api.InvalidStickerException;
  37 import org.asamk.signal.manager.api.InvalidUsernameException;
  38 import org.asamk.signal.manager.api.LastGroupAdminException;
  39 import org.asamk.signal.manager.api.Message;
  40 import org.asamk.signal.manager.api.MessageEnvelope;
  41 import org.asamk.signal.manager.api.NonNormalizedPhoneNumberException;
  42 import org.asamk.signal.manager.api.NotAGroupMemberException;
  43 import org.asamk.signal.manager.api.NotPrimaryDeviceException;
  44 import org.asamk.signal.manager.api.Pair;
  45 import org.asamk.signal.manager.api.PendingAdminApprovalException;
  46 import org.asamk.signal.manager.api.PinLockedException;
  47 import org.asamk.signal.manager.api.Profile;
  48 import org.asamk.signal.manager.api.RateLimitException;
  49 import org.asamk.signal.manager.api.ReceiveConfig;
  50 import org.asamk.signal.manager.api.Recipient;
  51 import org.asamk.signal.manager.api.RecipientIdentifier;
  52 import org.asamk.signal.manager.api.SendGroupMessageResults;
  53 import org.asamk.signal.manager.api.SendMessageResult;
  54 import org.asamk.signal.manager.api.SendMessageResults;
  55 import org.asamk.signal.manager.api.StickerPackId;
  56 import org.asamk.signal.manager.api.StickerPackInvalidException;
  57 import org.asamk.signal.manager.api.StickerPackUrl;
  58 import org.asamk.signal.manager.api.TextStyle;
  59 import org.asamk.signal.manager.api.TypingAction;
  60 import org.asamk.signal.manager.api.UnregisteredRecipientException;
  61 import org.asamk.signal.manager.api.UpdateGroup;
  62 import org.asamk.signal.manager.api.UpdateProfile;
  63 import org.asamk.signal.manager.api.UserStatus;
  64 import org.asamk.signal.manager.api.UsernameLinkUrl;
  65 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
  66 import org.asamk.signal.manager.helper.AccountFileUpdater;
  67 import org.asamk.signal.manager.helper.Context;
  68 import org.asamk.signal.manager.helper.RecipientHelper.RegisteredUser;
  69 import org.asamk.signal.manager.storage.AttachmentStore;
  70 import org.asamk.signal.manager.storage.AvatarStore;
  71 import org.asamk.signal.manager.storage.SignalAccount;
  72 import org.asamk.signal.manager.storage.groups.GroupInfo;
  73 import org.asamk.signal.manager.storage.identities.IdentityInfo;
  74 import org.asamk.signal.manager.storage.recipients.RecipientId;
  75 import org.asamk.signal.manager.storage.stickerPacks.JsonStickerPack;
  76 import org.asamk.signal.manager.storage.stickerPacks.StickerPackStore;
  77 import org.asamk.signal.manager.storage.stickers.StickerPack;
  78 import org.asamk.signal.manager.util.AttachmentUtils;
  79 import org.asamk.signal.manager.util.KeyUtils;
  80 import org.asamk.signal.manager.util.MimeUtils;
  81 import org.asamk.signal.manager.util.StickerUtils;
  82 import org.signal.libsignal.protocol.InvalidMessageException;
  83 import org.signal.libsignal.usernames.BaseUsernameException;
  84 import org.slf4j.Logger;
  85 import org.slf4j.LoggerFactory;
  86 import org.whispersystems.signalservice.api.SignalSessionLock;
  87 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  88 import org.whispersystems.signalservice.api.messages.SignalServicePreview;
  89 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  90 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  91 import org.whispersystems.signalservice.api.push.ServiceId;
  92 import org.whispersystems.signalservice.api.push.ServiceId.ACI;
  93 import org.whispersystems.signalservice.api.push.ServiceIdType;
  94 import org.whispersystems.signalservice.api.push.exceptions.CdsiResourceExhaustedException;
  95 import org.whispersystems.signalservice.api.util.DeviceNameUtil;
  96 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  97 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  98 import org.whispersystems.signalservice.api.util.StreamDetails;
  99 import org.whispersystems.signalservice.internal.util.Hex;
 100 import org.whispersystems.signalservice.internal.util.Util;
 101
 102 import java.io.ByteArrayInputStream;
 103 import java.io.File;
 104 import java.io.IOException;
 105 import java.io.InputStream;
 106 import java.nio.charset.StandardCharsets;
 107 import java.time.Duration;
 108 import java.util.ArrayList;
 109 import java.util.Collection;
 110 import java.util.HashMap;
 111 import java.util.HashSet;
 112 import java.util.List;
 113 import java.util.Map;
 114 import java.util.Objects;
 115 import java.util.Optional;
 116 import java.util.Set;
 117 import java.util.concurrent.ExecutorService;
 118 import java.util.concurrent.Executors;
 119 import java.util.concurrent.TimeUnit;
 120 import java.util.concurrent.atomic.AtomicInteger;
 121 import java.util.concurrent.locks.ReentrantLock;
 122 import java.util.function.Function;
 123 import java.util.stream.Collectors;
 124 import java.util.stream.Stream;
 125
 126 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 127
 128 public class ManagerImpl implements Manager {
 129
 130     private static final Logger logger = LoggerFactory.getLogger(ManagerImpl.class);
 131
 132     private SignalAccount account;
 133     private final SignalDependencies dependencies;
 134     private final Context context;
 135
 136     private final ExecutorService executor = Executors.newCachedThreadPool();
 137
 138     private Thread receiveThread;
 139     private boolean isReceivingSynchronous;
 140     private final Set<ReceiveMessageHandler> weakHandlers = new HashSet<>();
 141     private final Set<ReceiveMessageHandler> messageHandlers = new HashSet<>();
 142     private final List<Runnable> closedListeners = new ArrayList<>();
 143     private final List<Runnable> addressChangedListeners = new ArrayList<>();
 144     private final CompositeDisposable disposable = new CompositeDisposable();
 145
 146     public ManagerImpl(
 147             SignalAccount account,
 148             PathConfig pathConfig,
 149             AccountFileUpdater accountFileUpdater,
 150             ServiceEnvironmentConfig serviceEnvironmentConfig,
 151             String userAgent
 152     ) {
 153         this.account = account;
 154
 155         final var sessionLock = new SignalSessionLock() {
 156             private final ReentrantLock LEGACY_LOCK = new ReentrantLock();
 157
 158             @Override
 159             public Lock acquire() {
 160                 LEGACY_LOCK.lock();
 161                 return LEGACY_LOCK::unlock;
 162             }
 163         };
 164         this.dependencies = new SignalDependencies(serviceEnvironmentConfig,
 165                 userAgent,
 166                 account.getCredentialsProvider(),
 167                 account.getSignalServiceDataStore(),
 168                 executor,
 169                 sessionLock);
 170         final var avatarStore = new AvatarStore(pathConfig.avatarsPath());
 171         final var attachmentStore = new AttachmentStore(pathConfig.attachmentsPath());
 172         final var stickerPackStore = new StickerPackStore(pathConfig.stickerPacksPath());
 173
 174         this.context = new Context(account, new AccountFileUpdater() {
 175             @Override
 176             public void updateAccountIdentifiers(final String number, final ACI aci) {
 177                 accountFileUpdater.updateAccountIdentifiers(number, aci);
 178                 synchronized (addressChangedListeners) {
 179                     addressChangedListeners.forEach(Runnable::run);
 180                 }
 181             }
 182
 183             @Override
 184             public void removeAccount() {
 185                 accountFileUpdater.removeAccount();
 186             }
 187         }, dependencies, avatarStore, attachmentStore, stickerPackStore);
 188         this.context.getAccountHelper().setUnregisteredListener(this::close);
 189         this.context.getReceiveHelper().setAuthenticationFailureListener(this::close);
 190         this.context.getReceiveHelper().setCaughtUpWithOldMessagesListener(() -> {
 191             synchronized (this) {
 192                 this.notifyAll();
 193             }
 194         });
 195         disposable.add(account.getIdentityKeyStore().getIdentityChanges().subscribe(serviceId -> {
 196             logger.trace("Archiving old sessions for {}", serviceId);
 197             account.getAccountData(ServiceIdType.ACI).getSessionStore().archiveSessions(serviceId);
 198             account.getAccountData(ServiceIdType.PNI).getSessionStore().archiveSessions(serviceId);
 199             account.getSenderKeyStore().deleteSharedWith(serviceId);
 200             final var recipientId = account.getRecipientResolver().resolveRecipient(serviceId);
 201             final var profile = account.getProfileStore().getProfile(recipientId);
 202             if (profile != null) {
 203                 account.getProfileStore()
 204                         .storeProfile(recipientId,
 205                                 Profile.newBuilder(profile)
 206                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 207                                         .withLastUpdateTimestamp(0)
 208                                         .build());
 209             }
 210         }));
 211     }
 212
 213     @Override
 214     public String getSelfNumber() {
 215         return account.getNumber();
 216     }
 217
 218     public void checkAccountState() throws IOException {
 219         context.getAccountHelper().checkAccountState();
 220         final var lastRecipientsRefresh = account.getLastRecipientsRefresh();
 221         if (lastRecipientsRefresh == null
 222                 || lastRecipientsRefresh < System.currentTimeMillis() - TimeUnit.DAYS.toMillis(1)) {
 223             try {
 224                 context.getRecipientHelper().refreshUsers();
 225             } catch (Exception e) {
 226                 logger.warn("Full CDSI recipients refresh failed, ignoring: {} ({})",
 227                         e.getMessage(),
 228                         e.getClass().getSimpleName());
 229                 logger.debug("Full CDSI refresh failed", e);
 230             }
 231             context.getAccountHelper().checkWhoAmiI();
 232         }
 233     }
 234
 235     @Override
 236     public Map<String, UserStatus> getUserStatus(Set<String> numbers) throws IOException, RateLimitException {
 237         final var canonicalizedNumbers = numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 238             try {
 239                 final var canonicalizedNumber = PhoneNumberFormatter.formatNumber(n, account.getNumber());
 240                 if (!canonicalizedNumber.equals(n)) {
 241                     logger.debug("Normalized number {} to {}.", n, canonicalizedNumber);
 242                 }
 243                 return canonicalizedNumber;
 244             } catch (InvalidNumberException e) {
 245                 return "";
 246             }
 247         }));
 248
 249         // Note "registeredUsers" has no optionals. It only gives us info on users who are registered
 250         final var canonicalizedNumbersSet = canonicalizedNumbers.values()
 251                 .stream()
 252                 .filter(s -> !s.isEmpty())
 253                 .collect(Collectors.toSet());
 254
 255         final Map<String, RegisteredUser> registeredUsers;
 256         try {
 257             registeredUsers = context.getRecipientHelper().getRegisteredUsers(canonicalizedNumbersSet);
 258         } catch (CdsiResourceExhaustedException e) {
 259             logger.debug("CDSI resource exhausted: {}", e.getMessage());
 260             throw new RateLimitException(System.currentTimeMillis() + e.getRetryAfterSeconds() * 1000L);
 261         }
 262
 263         return numbers.stream().collect(Collectors.toMap(n -> n, n -> {
 264             final var number = canonicalizedNumbers.get(n);
 265             final var user = registeredUsers.get(number);
 266             final var serviceId = user == null ? null : user.getServiceId();
 267             final var profile = serviceId == null
 268                     ? null
 269                     : context.getProfileHelper()
 270                             .getRecipientProfile(account.getRecipientResolver().resolveRecipient(serviceId));
 271             return new UserStatus(number.isEmpty() ? null : number,
 272                     serviceId == null ? null : serviceId.getRawUuid(),
 273                     profile != null
 274                             && profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED);
 275         }));
 276     }
 277
 278     @Override
 279     public void updateAccountAttributes(String deviceName) throws IOException {
 280         if (deviceName != null) {
 281             context.getAccountHelper().setDeviceName(deviceName);
 282         }
 283         context.getAccountHelper().updateAccountAttributes();
 284         context.getAccountHelper().checkWhoAmiI();
 285     }
 286
 287     @Override
 288     public Configuration getConfiguration() {
 289         final var configurationStore = account.getConfigurationStore();
 290         return Configuration.from(configurationStore);
 291     }
 292
 293     @Override
 294     public void updateConfiguration(
 295             Configuration configuration
 296     ) throws NotPrimaryDeviceException {
 297         if (!account.isPrimaryDevice()) {
 298             throw new NotPrimaryDeviceException();
 299         }
 300
 301         final var configurationStore = account.getConfigurationStore();
 302         if (configuration.readReceipts().isPresent()) {
 303             configurationStore.setReadReceipts(configuration.readReceipts().get());
 304         }
 305         if (configuration.unidentifiedDeliveryIndicators().isPresent()) {
 306             configurationStore.setUnidentifiedDeliveryIndicators(configuration.unidentifiedDeliveryIndicators().get());
 307         }
 308         if (configuration.typingIndicators().isPresent()) {
 309             configurationStore.setTypingIndicators(configuration.typingIndicators().get());
 310         }
 311         if (configuration.linkPreviews().isPresent()) {
 312             configurationStore.setLinkPreviews(configuration.linkPreviews().get());
 313         }
 314         context.getSyncHelper().sendConfigurationMessage();
 315     }
 316
 317     @Override
 318     public void updateProfile(UpdateProfile updateProfile) throws IOException {
 319         context.getProfileHelper()
 320                 .setProfile(updateProfile.getGivenName(),
 321                         updateProfile.getFamilyName(),
 322                         updateProfile.getAbout(),
 323                         updateProfile.getAboutEmoji(),
 324                         updateProfile.isDeleteAvatar()
 325                                 ? Optional.empty()
 326                                 : updateProfile.getAvatar() == null ? null : Optional.of(updateProfile.getAvatar()),
 327                         updateProfile.getMobileCoinAddress());
 328         context.getSyncHelper().sendSyncFetchProfileMessage();
 329     }
 330
 331     void refreshCurrentUsername() throws IOException, BaseUsernameException {
 332         context.getAccountHelper().refreshCurrentUsername();
 333     }
 334
 335     @Override
 336     public String getUsername() {
 337         return account.getUsername();
 338     }
 339
 340     @Override
 341     public UsernameLinkUrl getUsernameLink() {
 342         return new UsernameLinkUrl(account.getUsernameLink());
 343     }
 344
 345     @Override
 346     public void setUsername(final String username) throws IOException, InvalidUsernameException {
 347         try {
 348             context.getAccountHelper().reserveUsername(username);
 349         } catch (BaseUsernameException e) {
 350             throw new InvalidUsernameException(e.getMessage() + " (" + e.getClass().getSimpleName() + ")", e);
 351         }
 352     }
 353
 354     @Override
 355     public void deleteUsername() throws IOException {
 356         context.getAccountHelper().deleteUsername();
 357     }
 358
 359     @Override
 360     public void startChangeNumber(
 361             String newNumber, boolean voiceVerification, String captcha
 362     ) throws RateLimitException, IOException, CaptchaRequiredException, NonNormalizedPhoneNumberException, NotPrimaryDeviceException {
 363         if (!account.isPrimaryDevice()) {
 364             throw new NotPrimaryDeviceException();
 365         }
 366         context.getAccountHelper().startChangeNumber(newNumber, voiceVerification, captcha);
 367     }
 368
 369     @Override
 370     public void finishChangeNumber(
 371             String newNumber, String verificationCode, String pin
 372     ) throws IncorrectPinException, PinLockedException, IOException, NotPrimaryDeviceException {
 373         if (!account.isPrimaryDevice()) {
 374             throw new NotPrimaryDeviceException();
 375         }
 376         context.getAccountHelper().finishChangeNumber(newNumber, verificationCode, pin);
 377     }
 378
 379     @Override
 380     public void unregister() throws IOException {
 381         context.getAccountHelper().unregister();
 382     }
 383
 384     @Override
 385     public void deleteAccount() throws IOException {
 386         context.getAccountHelper().deleteAccount();
 387     }
 388
 389     @Override
 390     public void submitRateLimitRecaptchaChallenge(String challenge, String captcha) throws IOException {
 391         captcha = captcha == null ? null : captcha.replace("signalcaptcha://", "");
 392
 393         dependencies.getAccountManager().submitRateLimitRecaptchaChallenge(challenge, captcha);
 394     }
 395
 396     @Override
 397     public List<Device> getLinkedDevices() throws IOException {
 398         var devices = dependencies.getAccountManager().getDevices();
 399         account.setMultiDevice(devices.size() > 1);
 400         var identityKey = account.getAciIdentityKeyPair().getPrivateKey();
 401         return devices.stream().map(d -> {
 402             String deviceName = d.getName();
 403             if (deviceName != null) {
 404                 try {
 405                     deviceName = DeviceNameUtil.decryptDeviceName(deviceName, identityKey);
 406                 } catch (IOException e) {
 407                     logger.debug("Failed to decrypt device name, maybe plain text?", e);
 408                 }
 409             }
 410             return new Device(d.getId(),
 411                     deviceName,
 412                     d.getCreated(),
 413                     d.getLastSeen(),
 414                     d.getId() == account.getDeviceId());
 415         }).toList();
 416     }
 417
 418     @Override
 419     public void removeLinkedDevices(int deviceId) throws IOException {
 420         context.getAccountHelper().removeLinkedDevices(deviceId);
 421     }
 422
 423     @Override
 424     public void addDeviceLink(DeviceLinkUrl linkUrl) throws IOException, InvalidDeviceLinkException, NotPrimaryDeviceException {
 425         if (!account.isPrimaryDevice()) {
 426             throw new NotPrimaryDeviceException();
 427         }
 428         context.getAccountHelper().addDevice(linkUrl);
 429     }
 430
 431     @Override
 432     public void setRegistrationLockPin(Optional<String> pin) throws IOException, NotPrimaryDeviceException {
 433         if (!account.isPrimaryDevice()) {
 434             throw new NotPrimaryDeviceException();
 435         }
 436         if (pin.isPresent()) {
 437             context.getAccountHelper().setRegistrationPin(pin.get());
 438         } else {
 439             context.getAccountHelper().removeRegistrationPin();
 440         }
 441     }
 442
 443     void refreshPreKeys() throws IOException {
 444         context.getPreKeyHelper().refreshPreKeysIfNecessary();
 445     }
 446
 447     @Override
 448     public List<Group> getGroups() {
 449         return account.getGroupStore().getGroups().stream().map(this::toGroup).toList();
 450     }
 451
 452     private Group toGroup(final GroupInfo groupInfo) {
 453         if (groupInfo == null) {
 454             return null;
 455         }
 456
 457         return Group.from(groupInfo, account.getRecipientAddressResolver(), account.getSelfRecipientId());
 458     }
 459
 460     @Override
 461     public SendGroupMessageResults quitGroup(
 462             GroupId groupId, Set<RecipientIdentifier.Single> groupAdmins
 463     ) throws GroupNotFoundException, IOException, NotAGroupMemberException, LastGroupAdminException, UnregisteredRecipientException {
 464         final var newAdmins = context.getRecipientHelper().resolveRecipients(groupAdmins);
 465         return context.getGroupHelper().quitGroup(groupId, newAdmins);
 466     }
 467
 468     @Override
 469     public void deleteGroup(GroupId groupId) throws IOException {
 470         final var group = context.getGroupHelper().getGroup(groupId);
 471         if (group.isMember(account.getSelfRecipientId())) {
 472             throw new IOException(
 473                     "The local group information cannot be removed, as the user is still a member of the group");
 474         }
 475         context.getGroupHelper().deleteGroup(groupId);
 476     }
 477
 478     @Override
 479     public Pair<GroupId, SendGroupMessageResults> createGroup(
 480             String name, Set<RecipientIdentifier.Single> members, String avatarFile
 481     ) throws IOException, AttachmentInvalidException, UnregisteredRecipientException {
 482         return context.getGroupHelper()
 483                 .createGroup(name,
 484                         members == null ? null : context.getRecipientHelper().resolveRecipients(members),
 485                         avatarFile);
 486     }
 487
 488     @Override
 489     public SendGroupMessageResults updateGroup(
 490             final GroupId groupId, final UpdateGroup updateGroup
 491     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 492         return context.getGroupHelper()
 493                 .updateGroup(groupId,
 494                         updateGroup.getName(),
 495                         updateGroup.getDescription(),
 496                         updateGroup.getMembers() == null
 497                                 ? null
 498                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getMembers()),
 499                         updateGroup.getRemoveMembers() == null
 500                                 ? null
 501                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveMembers()),
 502                         updateGroup.getAdmins() == null
 503                                 ? null
 504                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getAdmins()),
 505                         updateGroup.getRemoveAdmins() == null
 506                                 ? null
 507                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getRemoveAdmins()),
 508                         updateGroup.getBanMembers() == null
 509                                 ? null
 510                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getBanMembers()),
 511                         updateGroup.getUnbanMembers() == null
 512                                 ? null
 513                                 : context.getRecipientHelper().resolveRecipients(updateGroup.getUnbanMembers()),
 514                         updateGroup.isResetGroupLink(),
 515                         updateGroup.getGroupLinkState(),
 516                         updateGroup.getAddMemberPermission(),
 517                         updateGroup.getEditDetailsPermission(),
 518                         updateGroup.getAvatarFile(),
 519                         updateGroup.getExpirationTimer(),
 520                         updateGroup.getIsAnnouncementGroup());
 521     }
 522
 523     @Override
 524     public Pair<GroupId, SendGroupMessageResults> joinGroup(
 525             GroupInviteLinkUrl inviteLinkUrl
 526     ) throws IOException, InactiveGroupLinkException, PendingAdminApprovalException {
 527         return context.getGroupHelper().joinGroup(inviteLinkUrl);
 528     }
 529
 530     private SendMessageResults sendMessage(
 531             SignalServiceDataMessage.Builder messageBuilder, Set<RecipientIdentifier> recipients
 532     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 533         return sendMessage(messageBuilder, recipients, Optional.empty());
 534     }
 535
 536     private SendMessageResults sendMessage(
 537             SignalServiceDataMessage.Builder messageBuilder,
 538             Set<RecipientIdentifier> recipients,
 539             Optional<Long> editTargetTimestamp
 540     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 541         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 542         long timestamp = System.currentTimeMillis();
 543         messageBuilder.withTimestamp(timestamp);
 544         for (final var recipient : recipients) {
 545             if (recipient instanceof RecipientIdentifier.Single single) {
 546                 try {
 547                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 548                     final var result = context.getSendHelper()
 549                             .sendMessage(messageBuilder, recipientId, editTargetTimestamp);
 550                     results.put(recipient, List.of(toSendMessageResult(result)));
 551                 } catch (UnregisteredRecipientException e) {
 552                     results.put(recipient,
 553                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 554                 }
 555             } else if (recipient instanceof RecipientIdentifier.NoteToSelf) {
 556                 final var result = context.getSendHelper().sendSelfMessage(messageBuilder, editTargetTimestamp);
 557                 results.put(recipient, List.of(toSendMessageResult(result)));
 558             } else if (recipient instanceof RecipientIdentifier.Group group) {
 559                 final var result = context.getSendHelper()
 560                         .sendAsGroupMessage(messageBuilder, group.groupId(), editTargetTimestamp);
 561                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 562             }
 563         }
 564         return new SendMessageResults(timestamp, results);
 565     }
 566
 567     private SendMessageResult toSendMessageResult(final org.whispersystems.signalservice.api.messages.SendMessageResult result) {
 568         return SendMessageResult.from(result, account.getRecipientResolver(), account.getRecipientAddressResolver());
 569     }
 570
 571     private SendMessageResults sendTypingMessage(
 572             SignalServiceTypingMessage.Action action, Set<RecipientIdentifier> recipients
 573     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 574         var results = new HashMap<RecipientIdentifier, List<SendMessageResult>>();
 575         final var timestamp = System.currentTimeMillis();
 576         for (var recipient : recipients) {
 577             if (recipient instanceof RecipientIdentifier.Single single) {
 578                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.empty());
 579                 try {
 580                     final var recipientId = context.getRecipientHelper().resolveRecipient(single);
 581                     final var result = context.getSendHelper().sendTypingMessage(message, recipientId);
 582                     results.put(recipient, List.of(toSendMessageResult(result)));
 583                 } catch (UnregisteredRecipientException e) {
 584                     results.put(recipient,
 585                             List.of(SendMessageResult.unregisteredFailure(single.toPartialRecipientAddress())));
 586                 }
 587             } else if (recipient instanceof RecipientIdentifier.Group) {
 588                 final var groupId = ((RecipientIdentifier.Group) recipient).groupId();
 589                 final var message = new SignalServiceTypingMessage(action, timestamp, Optional.of(groupId.serialize()));
 590                 final var result = context.getSendHelper().sendGroupTypingMessage(message, groupId);
 591                 results.put(recipient, result.stream().map(this::toSendMessageResult).toList());
 592             }
 593         }
 594         return new SendMessageResults(timestamp, results);
 595     }
 596
 597     @Override
 598     public SendMessageResults sendTypingMessage(
 599             TypingAction action, Set<RecipientIdentifier> recipients
 600     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 601         return sendTypingMessage(action.toSignalService(), recipients);
 602     }
 603
 604     @Override
 605     public SendMessageResults sendReadReceipt(
 606             RecipientIdentifier.Single sender, List<Long> messageIds
 607     ) {
 608         final var timestamp = System.currentTimeMillis();
 609         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.READ,
 610                 messageIds,
 611                 timestamp);
 612
 613         return sendReceiptMessage(sender, timestamp, receiptMessage);
 614     }
 615
 616     @Override
 617     public SendMessageResults sendViewedReceipt(
 618             RecipientIdentifier.Single sender, List<Long> messageIds
 619     ) {
 620         final var timestamp = System.currentTimeMillis();
 621         var receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.VIEWED,
 622                 messageIds,
 623                 timestamp);
 624
 625         return sendReceiptMessage(sender, timestamp, receiptMessage);
 626     }
 627
 628     private SendMessageResults sendReceiptMessage(
 629             final RecipientIdentifier.Single sender,
 630             final long timestamp,
 631             final SignalServiceReceiptMessage receiptMessage
 632     ) {
 633         try {
 634             final var result = context.getSendHelper()
 635                     .sendReceiptMessage(receiptMessage, context.getRecipientHelper().resolveRecipient(sender));
 636             return new SendMessageResults(timestamp, Map.of(sender, List.of(toSendMessageResult(result))));
 637         } catch (UnregisteredRecipientException e) {
 638             return new SendMessageResults(timestamp,
 639                     Map.of(sender, List.of(SendMessageResult.unregisteredFailure(sender.toPartialRecipientAddress()))));
 640         }
 641     }
 642
 643     @Override
 644     public SendMessageResults sendMessage(
 645             Message message, Set<RecipientIdentifier> recipients
 646     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 647         final var selfProfile = context.getProfileHelper().getSelfProfile();
 648         if (selfProfile == null || selfProfile.getDisplayName().isEmpty()) {
 649             logger.warn(
 650                     "No profile name set. When sending a message it's recommended to set a profile name with the updateProfile command. This may become mandatory in the future.");
 651         }
 652         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 653         applyMessage(messageBuilder, message);
 654         return sendMessage(messageBuilder, recipients);
 655     }
 656
 657     @Override
 658     public SendMessageResults sendEditMessage(
 659             Message message, Set<RecipientIdentifier> recipients, long editTargetTimestamp
 660     ) throws IOException, AttachmentInvalidException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException, InvalidStickerException {
 661         final var messageBuilder = SignalServiceDataMessage.newBuilder();
 662         applyMessage(messageBuilder, message);
 663         return sendMessage(messageBuilder, recipients, Optional.of(editTargetTimestamp));
 664     }
 665
 666     private void applyMessage(
 667             final SignalServiceDataMessage.Builder messageBuilder, final Message message
 668     ) throws AttachmentInvalidException, IOException, UnregisteredRecipientException, InvalidStickerException {
 669         if (message.messageText().length() > 2000) {
 670             final var messageBytes = message.messageText().getBytes(StandardCharsets.UTF_8);
 671             final var textAttachment = AttachmentUtils.createAttachmentStream(new StreamDetails(new ByteArrayInputStream(
 672                     messageBytes), MimeUtils.LONG_TEXT, messageBytes.length), Optional.empty());
 673             messageBuilder.withBody(message.messageText().substring(0, 2000));
 674             messageBuilder.withAttachment(context.getAttachmentHelper().uploadAttachment(textAttachment));
 675         } else {
 676             messageBuilder.withBody(message.messageText());
 677         }
 678         if (!message.attachments().isEmpty()) {
 679             messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(message.attachments()));
 680         }
 681         if (!message.mentions().isEmpty()) {
 682             messageBuilder.withMentions(resolveMentions(message.mentions()));
 683         }
 684         if (!message.textStyles().isEmpty()) {
 685             messageBuilder.withBodyRanges(message.textStyles().stream().map(TextStyle::toBodyRange).toList());
 686         }
 687         if (message.quote().isPresent()) {
 688             final var quote = message.quote().get();
 689             final var quotedAttachments = new ArrayList<SignalServiceDataMessage.Quote.QuotedAttachment>();
 690             for (final var a : quote.attachments()) {
 691                 final var quotedAttachment = new SignalServiceDataMessage.Quote.QuotedAttachment(a.contentType(),
 692                         a.filename(),
 693                         a.preview() == null ? null : context.getAttachmentHelper().uploadAttachment(a.preview()));
 694                 quotedAttachments.add(quotedAttachment);
 695             }
 696             messageBuilder.withQuote(new SignalServiceDataMessage.Quote(quote.timestamp(),
 697                     context.getRecipientHelper()
 698                             .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(quote.author()))
 699                             .getServiceId(),
 700                     quote.message(),
 701                     quotedAttachments,
 702                     resolveMentions(quote.mentions()),
 703                     SignalServiceDataMessage.Quote.Type.NORMAL,
 704                     quote.textStyles().stream().map(TextStyle::toBodyRange).toList()));
 705         }
 706         if (message.sticker().isPresent()) {
 707             final var sticker = message.sticker().get();
 708             final var packId = StickerPackId.deserialize(sticker.packId());
 709             final var stickerId = sticker.stickerId();
 710
 711             final var stickerPack = context.getAccount().getStickerStore().getStickerPack(packId);
 712             if (stickerPack == null) {
 713                 throw new InvalidStickerException("Sticker pack not found");
 714             }
 715             final var manifest = context.getStickerHelper().getOrRetrieveStickerPack(packId, stickerPack.packKey());
 716             if (manifest.stickers().size() <= stickerId) {
 717                 throw new InvalidStickerException("Sticker id not part of this pack");
 718             }
 719             final var manifestSticker = manifest.stickers().get(stickerId);
 720             final var streamDetails = context.getStickerPackStore().retrieveSticker(packId, stickerId);
 721             if (streamDetails == null) {
 722                 throw new InvalidStickerException("Missing local sticker file");
 723             }
 724             messageBuilder.withSticker(new SignalServiceDataMessage.Sticker(packId.serialize(),
 725                     stickerPack.packKey(),
 726                     stickerId,
 727                     manifestSticker.emoji(),
 728                     AttachmentUtils.createAttachmentStream(streamDetails, Optional.empty())));
 729         }
 730         if (!message.previews().isEmpty()) {
 731             final var previews = new ArrayList<SignalServicePreview>(message.previews().size());
 732             for (final var p : message.previews()) {
 733                 final var image = p.image().isPresent() ? context.getAttachmentHelper()
 734                         .uploadAttachment(p.image().get()) : null;
 735                 previews.add(new SignalServicePreview(p.url(),
 736                         p.title(),
 737                         p.description(),
 738                         0,
 739                         Optional.ofNullable(image)));
 740             }
 741             messageBuilder.withPreviews(previews);
 742         }
 743         if (message.storyReply().isPresent()) {
 744             final var storyReply = message.storyReply().get();
 745             final var authorServiceId = context.getRecipientHelper()
 746                     .resolveSignalServiceAddress(context.getRecipientHelper().resolveRecipient(storyReply.author()))
 747                     .getServiceId();
 748             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 749                     storyReply.timestamp()));
 750         }
 751     }
 752
 753     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws UnregisteredRecipientException {
 754         final var mentions = new ArrayList<SignalServiceDataMessage.Mention>();
 755         for (final var m : mentionList) {
 756             final var recipientId = context.getRecipientHelper().resolveRecipient(m.recipient());
 757             mentions.add(new SignalServiceDataMessage.Mention(context.getRecipientHelper()
 758                     .resolveSignalServiceAddress(recipientId)
 759                     .getServiceId(), m.start(), m.length()));
 760         }
 761         return mentions;
 762     }
 763
 764     @Override
 765     public SendMessageResults sendRemoteDeleteMessage(
 766             long targetSentTimestamp, Set<RecipientIdentifier> recipients
 767     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 768         var delete = new SignalServiceDataMessage.RemoteDelete(targetSentTimestamp);
 769         final var messageBuilder = SignalServiceDataMessage.newBuilder().withRemoteDelete(delete);
 770         for (final var recipient : recipients) {
 771             if (recipient instanceof RecipientIdentifier.Uuid u) {
 772                 account.getMessageSendLogStore()
 773                         .deleteEntryForRecipientNonGroup(targetSentTimestamp, ACI.from(u.uuid()));
 774             } else if (recipient instanceof RecipientIdentifier.Single r) {
 775                 try {
 776                     final var recipientId = context.getRecipientHelper().resolveRecipient(r);
 777                     final var address = account.getRecipientAddressResolver().resolveRecipientAddress(recipientId);
 778                     if (address.serviceId().isPresent()) {
 779                         account.getMessageSendLogStore()
 780                                 .deleteEntryForRecipientNonGroup(targetSentTimestamp, address.serviceId().get());
 781                     }
 782                 } catch (UnregisteredRecipientException ignored) {
 783                 }
 784             } else if (recipient instanceof RecipientIdentifier.Group r) {
 785                 account.getMessageSendLogStore().deleteEntryForGroup(targetSentTimestamp, r.groupId());
 786             }
 787         }
 788         return sendMessage(messageBuilder, recipients);
 789     }
 790
 791     @Override
 792     public SendMessageResults sendMessageReaction(
 793             String emoji,
 794             boolean remove,
 795             RecipientIdentifier.Single targetAuthor,
 796             long targetSentTimestamp,
 797             Set<RecipientIdentifier> recipients,
 798             final boolean isStory
 799     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException, UnregisteredRecipientException {
 800         var targetAuthorRecipientId = context.getRecipientHelper().resolveRecipient(targetAuthor);
 801         final var authorServiceId = context.getRecipientHelper()
 802                 .resolveSignalServiceAddress(targetAuthorRecipientId)
 803                 .getServiceId();
 804         var reaction = new SignalServiceDataMessage.Reaction(emoji, remove, authorServiceId, targetSentTimestamp);
 805         final var messageBuilder = SignalServiceDataMessage.newBuilder().withReaction(reaction);
 806         if (isStory) {
 807             messageBuilder.withStoryContext(new SignalServiceDataMessage.StoryContext(authorServiceId,
 808                     targetSentTimestamp));
 809         }
 810         return sendMessage(messageBuilder, recipients);
 811     }
 812
 813     @Override
 814     public SendMessageResults sendPaymentNotificationMessage(
 815             byte[] receipt, String note, RecipientIdentifier.Single recipient
 816     ) throws IOException {
 817         final var paymentNotification = new SignalServiceDataMessage.PaymentNotification(receipt, note);
 818         final var payment = new SignalServiceDataMessage.Payment(paymentNotification, null);
 819         final var messageBuilder = SignalServiceDataMessage.newBuilder().withPayment(payment);
 820         try {
 821             return sendMessage(messageBuilder, Set.of(recipient));
 822         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 823             throw new AssertionError(e);
 824         }
 825     }
 826
 827     @Override
 828     public SendMessageResults sendEndSessionMessage(Set<RecipientIdentifier.Single> recipients) throws IOException {
 829         var messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 830
 831         try {
 832             return sendMessage(messageBuilder,
 833                     recipients.stream().map(RecipientIdentifier.class::cast).collect(Collectors.toSet()));
 834         } catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
 835             throw new AssertionError(e);
 836         } finally {
 837             for (var recipient : recipients) {
 838                 final RecipientId recipientId;
 839                 try {
 840                     recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 841                 } catch (UnregisteredRecipientException e) {
 842                     continue;
 843                 }
 844                 final var serviceId = context.getAccount()
 845                         .getRecipientAddressResolver()
 846                         .resolveRecipientAddress(recipientId)
 847                         .serviceId();
 848                 if (serviceId.isPresent()) {
 849                     account.getAccountData(ServiceIdType.ACI).getSessionStore().deleteAllSessions(serviceId.get());
 850                 }
 851             }
 852         }
 853     }
 854
 855     @Override
 856     public void hideRecipient(final RecipientIdentifier.Single recipient) {
 857         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 858         if (recipientIdOptional.isPresent()) {
 859             context.getContactHelper().setContactHidden(recipientIdOptional.get(), true);
 860             account.removeRecipient(recipientIdOptional.get());
 861         }
 862     }
 863
 864     @Override
 865     public void deleteRecipient(final RecipientIdentifier.Single recipient) {
 866         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 867         if (recipientIdOptional.isPresent()) {
 868             account.removeRecipient(recipientIdOptional.get());
 869         }
 870     }
 871
 872     @Override
 873     public void deleteContact(final RecipientIdentifier.Single recipient) {
 874         final var recipientIdOptional = context.getRecipientHelper().resolveRecipientOptional(recipient);
 875         if (recipientIdOptional.isPresent()) {
 876             account.getContactStore().deleteContact(recipientIdOptional.get());
 877         }
 878     }
 879
 880     @Override
 881     public void setContactName(
 882             RecipientIdentifier.Single recipient, String givenName, final String familyName
 883     ) throws NotPrimaryDeviceException, UnregisteredRecipientException {
 884         if (!account.isPrimaryDevice()) {
 885             throw new NotPrimaryDeviceException();
 886         }
 887         context.getContactHelper()
 888                 .setContactName(context.getRecipientHelper().resolveRecipient(recipient), givenName, familyName);
 889     }
 890
 891     @Override
 892     public void setContactsBlocked(
 893             Collection<RecipientIdentifier.Single> recipients, boolean blocked
 894     ) throws NotPrimaryDeviceException, IOException, UnregisteredRecipientException {
 895         if (!account.isPrimaryDevice()) {
 896             throw new NotPrimaryDeviceException();
 897         }
 898         if (recipients.isEmpty()) {
 899             return;
 900         }
 901         final var recipientIds = context.getRecipientHelper().resolveRecipients(recipients);
 902         final var selfRecipientId = account.getSelfRecipientId();
 903         boolean shouldRotateProfileKey = false;
 904         for (final var recipientId : recipientIds) {
 905             if (context.getContactHelper().isContactBlocked(recipientId) == blocked) {
 906                 continue;
 907             }
 908             context.getContactHelper().setContactBlocked(recipientId, blocked);
 909             // if we don't have a common group with the blocked contact we need to rotate the profile key
 910             shouldRotateProfileKey = blocked && (
 911                     shouldRotateProfileKey || account.getGroupStore()
 912                             .getGroups()
 913                             .stream()
 914                             .noneMatch(g -> g.isMember(selfRecipientId) && g.isMember(recipientId))
 915             );
 916         }
 917         if (shouldRotateProfileKey) {
 918             context.getProfileHelper().rotateProfileKey();
 919         }
 920         context.getSyncHelper().sendBlockedList();
 921     }
 922
 923     @Override
 924     public void setGroupsBlocked(
 925             final Collection<GroupId> groupIds, final boolean blocked
 926     ) throws GroupNotFoundException, NotPrimaryDeviceException, IOException {
 927         if (!account.isPrimaryDevice()) {
 928             throw new NotPrimaryDeviceException();
 929         }
 930         if (groupIds.isEmpty()) {
 931             return;
 932         }
 933         boolean shouldRotateProfileKey = false;
 934         for (final var groupId : groupIds) {
 935             if (context.getGroupHelper().isGroupBlocked(groupId) == blocked) {
 936                 continue;
 937             }
 938             context.getGroupHelper().setGroupBlocked(groupId, blocked);
 939             shouldRotateProfileKey = blocked;
 940         }
 941         if (shouldRotateProfileKey) {
 942             context.getProfileHelper().rotateProfileKey();
 943         }
 944         context.getSyncHelper().sendBlockedList();
 945     }
 946
 947     @Override
 948     public void setExpirationTimer(
 949             RecipientIdentifier.Single recipient, int messageExpirationTimer
 950     ) throws IOException, UnregisteredRecipientException {
 951         var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
 952         context.getContactHelper().setExpirationTimer(recipientId, messageExpirationTimer);
 953         final var messageBuilder = SignalServiceDataMessage.newBuilder().asExpirationUpdate();
 954         try {
 955             sendMessage(messageBuilder, Set.of(recipient));
 956         } catch (NotAGroupMemberException | GroupNotFoundException | GroupSendingNotAllowedException e) {
 957             throw new AssertionError(e);
 958         }
 959     }
 960
 961     @Override
 962     public StickerPackUrl uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
 963         var manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
 964
 965         var messageSender = dependencies.getMessageSender();
 966
 967         var packKey = KeyUtils.createStickerUploadKey();
 968         var packIdString = messageSender.uploadStickerManifest(manifest, packKey);
 969         var packId = StickerPackId.deserialize(Hex.fromStringCondensed(packIdString));
 970
 971         var sticker = new StickerPack(packId, packKey);
 972         account.getStickerStore().addStickerPack(sticker);
 973         context.getSyncHelper().sendStickerOperationsMessage(List.of(sticker), List.of());
 974
 975         return new StickerPackUrl(packId, packKey);
 976     }
 977
 978     @Override
 979     public void installStickerPack(StickerPackUrl url) throws IOException {
 980         final var packId = url.packId();
 981         final var packKey = url.packKey();
 982         try {
 983             context.getStickerHelper().retrieveStickerPack(packId, packKey);
 984         } catch (InvalidMessageException e) {
 985             throw new IOException(e);
 986         }
 987
 988         final var sticker = context.getStickerHelper().addOrUpdateStickerPack(packId, packKey, true);
 989         context.getSyncHelper().sendStickerOperationsMessage(List.of(sticker), List.of());
 990     }
 991
 992     @Override
 993     public List<org.asamk.signal.manager.api.StickerPack> getStickerPacks() {
 994         final var stickerPackStore = context.getStickerPackStore();
 995         return account.getStickerStore().getStickerPacks().stream().map(pack -> {
 996             if (stickerPackStore.existsStickerPack(pack.packId())) {
 997                 try {
 998                     final var manifest = stickerPackStore.retrieveManifest(pack.packId());
 999                     return new org.asamk.signal.manager.api.StickerPack(pack.packId(),
1000                             new StickerPackUrl(pack.packId(), pack.packKey()),
1001                             pack.isInstalled(),
1002                             manifest.title(),
1003                             manifest.author(),
1004                             Optional.ofNullable(manifest.cover() == null ? null : manifest.cover().toApi()),
1005                             manifest.stickers().stream().map(JsonStickerPack.JsonSticker::toApi).toList());
1006                 } catch (Exception e) {
1007                     logger.warn("Failed to read local sticker pack manifest: {}", e.getMessage(), e);
1008                 }
1009             }
1010
1011             return new org.asamk.signal.manager.api.StickerPack(pack.packId(), pack.packKey(), pack.isInstalled());
1012         }).toList();
1013     }
1014
1015     @Override
1016     public void requestAllSyncData() throws IOException {
1017         context.getSyncHelper().requestAllSyncData();
1018         retrieveRemoteStorage();
1019     }
1020
1021     void retrieveRemoteStorage() throws IOException {
1022         context.getStorageHelper().readDataFromStorage();
1023     }
1024
1025     @Override
1026     public void addReceiveHandler(final ReceiveMessageHandler handler, final boolean isWeakListener) {
1027         synchronized (messageHandlers) {
1028             if (isWeakListener) {
1029                 weakHandlers.add(handler);
1030             } else {
1031                 messageHandlers.add(handler);
1032                 startReceiveThreadIfRequired();
1033             }
1034         }
1035     }
1036
1037     private static final AtomicInteger threadNumber = new AtomicInteger(0);
1038
1039     private void startReceiveThreadIfRequired() {
1040         if (receiveThread != null || isReceivingSynchronous) {
1041             return;
1042         }
1043         receiveThread = Thread.ofPlatform().name("receive-" + threadNumber.getAndIncrement()).start(() -> {
1044             logger.debug("Starting receiving messages");
1045             context.getReceiveHelper().receiveMessagesContinuously(this::passReceivedMessageToHandlers);
1046             logger.debug("Finished receiving messages");
1047             synchronized (messageHandlers) {
1048                 receiveThread = null;
1049
1050                 // Check if in the meantime another handler has been registered
1051                 if (!messageHandlers.isEmpty()) {
1052                     logger.debug("Another handler has been registered, starting receive thread again");
1053                     startReceiveThreadIfRequired();
1054                 }
1055             }
1056         });
1057     }
1058
1059     private void passReceivedMessageToHandlers(MessageEnvelope envelope, Throwable e) {
1060         synchronized (messageHandlers) {
1061             Stream.concat(messageHandlers.stream(), weakHandlers.stream()).forEach(h -> {
1062                 try {
1063                     h.handleMessage(envelope, e);
1064                 } catch (Throwable ex) {
1065                     logger.warn("Message handler failed, ignoring", ex);
1066                 }
1067             });
1068         }
1069     }
1070
1071     @Override
1072     public void removeReceiveHandler(final ReceiveMessageHandler handler) {
1073         final Thread thread;
1074         synchronized (messageHandlers) {
1075             weakHandlers.remove(handler);
1076             messageHandlers.remove(handler);
1077             if (!messageHandlers.isEmpty() || receiveThread == null || isReceivingSynchronous) {
1078                 return;
1079             }
1080             thread = receiveThread;
1081             receiveThread = null;
1082         }
1083
1084         stopReceiveThread(thread);
1085     }
1086
1087     private void stopReceiveThread(final Thread thread) {
1088         if (context.getReceiveHelper().requestStopReceiveMessages()) {
1089             logger.debug("Receive stop requested, interrupting read from server.");
1090             thread.interrupt();
1091         }
1092         try {
1093             thread.join();
1094         } catch (InterruptedException ignored) {
1095         }
1096     }
1097
1098     @Override
1099     public boolean isReceiving() {
1100         if (isReceivingSynchronous) {
1101             return true;
1102         }
1103         synchronized (messageHandlers) {
1104             return !messageHandlers.isEmpty();
1105         }
1106     }
1107
1108     @Override
1109     public void receiveMessages(
1110             Optional<Duration> timeout, Optional<Integer> maxMessages, ReceiveMessageHandler handler
1111     ) throws IOException, AlreadyReceivingException {
1112         receiveMessages(timeout.orElse(Duration.ofMinutes(1)), timeout.isPresent(), maxMessages.orElse(null), handler);
1113     }
1114
1115     @Override
1116     public void stopReceiveMessages() {
1117         Thread thread = null;
1118         synchronized (messageHandlers) {
1119             if (isReceivingSynchronous) {
1120                 thread = receiveThread;
1121                 receiveThread = null;
1122             }
1123         }
1124         if (thread != null) {
1125             stopReceiveThread(thread);
1126         }
1127     }
1128
1129     private void receiveMessages(
1130             Duration timeout, boolean returnOnTimeout, Integer maxMessages, ReceiveMessageHandler handler
1131     ) throws IOException, AlreadyReceivingException {
1132         synchronized (messageHandlers) {
1133             if (isReceiving()) {
1134                 throw new AlreadyReceivingException("Already receiving message.");
1135             }
1136             isReceivingSynchronous = true;
1137             receiveThread = Thread.currentThread();
1138         }
1139         try {
1140             context.getReceiveHelper().receiveMessages(timeout, returnOnTimeout, maxMessages, (envelope, e) -> {
1141                 passReceivedMessageToHandlers(envelope, e);
1142                 handler.handleMessage(envelope, e);
1143             });
1144         } finally {
1145             synchronized (messageHandlers) {
1146                 receiveThread = null;
1147                 isReceivingSynchronous = false;
1148                 if (!messageHandlers.isEmpty()) {
1149                     startReceiveThreadIfRequired();
1150                 }
1151             }
1152         }
1153     }
1154
1155     @Override
1156     public void setReceiveConfig(final ReceiveConfig receiveConfig) {
1157         context.getReceiveHelper().setReceiveConfig(receiveConfig);
1158     }
1159
1160     @Override
1161     public boolean isContactBlocked(final RecipientIdentifier.Single recipient) {
1162         final RecipientId recipientId;
1163         try {
1164             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1165         } catch (UnregisteredRecipientException e) {
1166             return false;
1167         }
1168         return context.getContactHelper().isContactBlocked(recipientId);
1169     }
1170
1171     @Override
1172     public void sendContacts() throws IOException {
1173         context.getSyncHelper().sendContacts();
1174     }
1175
1176     @Override
1177     public List<Recipient> getRecipients(
1178             boolean onlyContacts,
1179             Optional<Boolean> blocked,
1180             Collection<RecipientIdentifier.Single> recipients,
1181             Optional<String> name
1182     ) {
1183         final var recipientIds = recipients.stream().map(a -> {
1184             try {
1185                 return context.getRecipientHelper().resolveRecipient(a);
1186             } catch (UnregisteredRecipientException e) {
1187                 return null;
1188             }
1189         }).filter(Objects::nonNull).collect(Collectors.toSet());
1190         if (!recipients.isEmpty() && recipientIds.isEmpty()) {
1191             return List.of();
1192         }
1193         // refresh profiles of explicitly given recipients
1194         context.getProfileHelper().refreshRecipientProfiles(recipientIds);
1195         return account.getRecipientStore()
1196                 .getRecipients(onlyContacts, blocked, recipientIds, name)
1197                 .stream()
1198                 .map(s -> new Recipient(s.getRecipientId(),
1199                         s.getAddress().toApiRecipientAddress(),
1200                         s.getContact(),
1201                         s.getProfileKey(),
1202                         s.getExpiringProfileKeyCredential(),
1203                         s.getProfile()))
1204                 .toList();
1205     }
1206
1207     @Override
1208     public String getContactOrProfileName(RecipientIdentifier.Single recipient) {
1209         final RecipientId recipientId;
1210         try {
1211             recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1212         } catch (UnregisteredRecipientException e) {
1213             return null;
1214         }
1215
1216         final var contact = account.getContactStore().getContact(recipientId);
1217         if (contact != null && !Util.isEmpty(contact.getName())) {
1218             return contact.getName();
1219         }
1220
1221         final var profile = context.getProfileHelper().getRecipientProfile(recipientId);
1222         if (profile != null) {
1223             return profile.getDisplayName();
1224         }
1225
1226         return null;
1227     }
1228
1229     @Override
1230     public Group getGroup(GroupId groupId) {
1231         return toGroup(context.getGroupHelper().getGroup(groupId));
1232     }
1233
1234     @Override
1235     public List<Identity> getIdentities() {
1236         return account.getIdentityKeyStore()
1237                 .getIdentities()
1238                 .stream()
1239                 .map(this::toIdentity)
1240                 .filter(Objects::nonNull)
1241                 .toList();
1242     }
1243
1244     private Identity toIdentity(final IdentityInfo identityInfo) {
1245         if (identityInfo == null) {
1246             return null;
1247         }
1248
1249         final var address = account.getRecipientAddressResolver()
1250                 .resolveRecipientAddress(account.getRecipientResolver().resolveRecipient(identityInfo.getServiceId()));
1251         if (address.serviceId().isPresent() && !Objects.equals(address.serviceId().get(),
1252                 identityInfo.getServiceId())) {
1253             return null;
1254         }
1255         final var scannableFingerprint = context.getIdentityHelper()
1256                 .computeSafetyNumberForScanning(identityInfo.getServiceId(), identityInfo.getIdentityKey());
1257         return new Identity(address.toApiRecipientAddress(),
1258                 identityInfo.getIdentityKey(),
1259                 context.getIdentityHelper()
1260                         .computeSafetyNumber(identityInfo.getServiceId(), identityInfo.getIdentityKey()),
1261                 scannableFingerprint == null ? null : scannableFingerprint.getSerialized(),
1262                 identityInfo.getTrustLevel(),
1263                 identityInfo.getDateAddedTimestamp());
1264     }
1265
1266     @Override
1267     public List<Identity> getIdentities(RecipientIdentifier.Single recipient) {
1268         ServiceId serviceId;
1269         try {
1270             final var address = account.getRecipientAddressResolver()
1271                     .resolveRecipientAddress(context.getRecipientHelper().resolveRecipient(recipient));
1272             if (address.serviceId().isEmpty()) {
1273                 return List.of();
1274             }
1275             serviceId = address.serviceId().get();
1276         } catch (UnregisteredRecipientException e) {
1277             return List.of();
1278         }
1279         final var identity = account.getIdentityKeyStore().getIdentityInfo(serviceId);
1280         return identity == null ? List.of() : List.of(toIdentity(identity));
1281     }
1282
1283     @Override
1284     public boolean trustIdentityVerified(
1285             RecipientIdentifier.Single recipient, IdentityVerificationCode verificationCode
1286     ) throws UnregisteredRecipientException {
1287         return switch (verificationCode) {
1288             case IdentityVerificationCode.Fingerprint fingerprint -> trustIdentity(recipient,
1289                     r -> context.getIdentityHelper().trustIdentityVerified(r, fingerprint.fingerprint()));
1290             case IdentityVerificationCode.SafetyNumber safetyNumber -> trustIdentity(recipient,
1291                     r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber.safetyNumber()));
1292             case IdentityVerificationCode.ScannableSafetyNumber safetyNumber -> trustIdentity(recipient,
1293                     r -> context.getIdentityHelper().trustIdentityVerifiedSafetyNumber(r, safetyNumber.safetyNumber()));
1294             case null, default -> throw new AssertionError("Invalid verification code type");
1295         };
1296     }
1297
1298     @Override
1299     public boolean trustIdentityAllKeys(RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
1300         return trustIdentity(recipient, r -> context.getIdentityHelper().trustIdentityAllKeys(r));
1301     }
1302
1303     private boolean trustIdentity(
1304             RecipientIdentifier.Single recipient, Function<RecipientId, Boolean> trustMethod
1305     ) throws UnregisteredRecipientException {
1306         final var recipientId = context.getRecipientHelper().resolveRecipient(recipient);
1307         final var updated = trustMethod.apply(recipientId);
1308         if (updated && this.isReceiving()) {
1309             context.getReceiveHelper().setNeedsToRetryFailedMessages(true);
1310         }
1311         return updated;
1312     }
1313
1314     @Override
1315     public void addAddressChangedListener(final Runnable listener) {
1316         synchronized (addressChangedListeners) {
1317             addressChangedListeners.add(listener);
1318         }
1319     }
1320
1321     @Override
1322     public void addClosedListener(final Runnable listener) {
1323         synchronized (closedListeners) {
1324             closedListeners.add(listener);
1325         }
1326     }
1327
1328     @Override
1329     public InputStream retrieveAttachment(final String id) throws IOException {
1330         return context.getAttachmentHelper().retrieveAttachment(id).getStream();
1331     }
1332
1333     @Override
1334     public void close() {
1335         Thread thread;
1336         synchronized (messageHandlers) {
1337             weakHandlers.clear();
1338             messageHandlers.clear();
1339             thread = receiveThread;
1340             receiveThread = null;
1341         }
1342         if (thread != null) {
1343             stopReceiveThread(thread);
1344         }
1345         executor.close();
1346         context.close();
1347
1348         dependencies.getSignalWebSocket().disconnect();
1349         dependencies.getPushServiceSocket().close();
1350         disposable.dispose();
1351
1352         if (account != null) {
1353             account.close();
1354         }
1355
1356         synchronized (closedListeners) {
1357             closedListeners.forEach(Runnable::run);
1358             closedListeners.clear();
1359         }
1360
1361         account = null;
1362     }
1363 }